In Chapter 4 of 21 in her 2010 interview with Erik Michielsen, global health consultant Gabrielle Lamourelle learns leadership and business management participating in an a cappella group. She learns dedication only goes so far, finding group leadership and motivation necessary to build consensus. As a business manager, Lamourelle teams with a music manager to lead the group. She applies this planning and problem solving experience in her public health career as a global health consultant. Lamourelle graduated with a BS in Sociology from University of California at Berkeley and a Masters in Public Health (MPH) in Sociomedical Sciences from the Mailman School of Public Health at Columbia University.